toán tử

== Vietnamese == === Etymology === Sino-Vietnamese word from 算子. === Pronunciation === (Hà Nội) IPA(key): [twaːn˧˦ tɨ˧˩] (Huế) IPA(key): [twaːŋ˦˧˥ tɨ˧˨] (Saigon) IPA(key): [t⁽ʷ⁾aːŋ˦˥ tɨ˨˩˦] === Noun === toán tử (mathematics) operator